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Abstract In the research works on electrification reform engineering project of Tianjun-Qinhuangdao-Shenyang Railway, there were multi-opinions concerned with the problem having the necessity of reform the down direction system at Shanhaiguan Station for enlarging its capacity or not. From several aspects concerned with traffic organization, formation of car flow, capacity of station，etc, the paper analyzes the existing problems in which the down direction system should not be reformed and its solving scheme，so as to explain the necessity of its reform.
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Received: 17 June 2002
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2002, Vol. 19 
